The early S100 Polaras made in the period of '63 to early '65 had independent volume and tone controls for the two "mini soapbar" pickups and a pickup selector switch. Sometime in '65 the S-100 Polara wiring was altered and included a "setting switch". This was a single slide switch similar to that found on the S-200 Thunderbird. On that model S-100 the pickups have two distinct Master Volume and Master Tone configuration selected by the slide switch. It also had the standard pickup selector switch for Neck, Neck + Bridge and Bridge.The later S100 usually have the white alinico "Mickey Mouse" pickups and often have the inverted Fenderish headstock.
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